C O N T E X T 1 3 4 : M A Y 2 0 1 4 1 Cover: Timber-framed houses in Lavenham, Suffolk (Photo: Gergo Orban, Shutterstock) www.ihbc.org.uk Registered as a charity in England andWales number 1061593 and in Scotland number SC041945. Company Limited by Guarantee. Registered in England number 3333780. Registered Office: 3 Stafford Road,TunbridgeWells, Kent TN2 4QZ. Officers President Trefor Thorpe, president@ihbc.org.uk Chair Mike Brown, chair@ihbc.org.uk Vice Chair Emilia McDonald, vchair@ihbc.org.uk Secretary Eddie Booth, ihbcsecretary@ihbc.org.uk Treasurer Richard Morrice, treasurer@ihbc.org.uk National Office Director Seán O’Reilly, director@ihbc.org.uk Projects Officer Fiona Newton, projects@ihbc.org.uk Consultant Consultations Coordinator James Caird, consultations@ihbc.org.uk Membership Services Officer Carmen Moran, membershipservices@ihbc.org.uk Administration Officer Lydia Porter, admin@ihbc.org.uk Committee Chairs Policy David Kincaid, policy@ihbc.org.uk Membership & Ethics Paul Butler, membership@ihbc.org.uk Finance & Resources Richard Morrice, resources@ihbc.org.uk Education David McDonald, education@ihbc.org.uk Communications & Outreach Charles Strang, communications@ihbc.org.uk Branch Officers North Geoff Underwood, 0191 433 3435 NorthWest Crispin Edwards, 0161 474 2620 Yorkshire David Blackburn, 01943 603479 West Midlands Charles Shapcott, 0121 7044312 East Midlands Roy Lewis, 01623 756623 South Julia Foster, 01296 585888 SouthWest JamesWebb, 01202 732849 East Anglia David Andrews, 07760 208231 South East Sean Rix, 01483 523379 London JohnWebb, 020 8461 1190 Scotland Stuart Eydmann, 07525 479835 Wales Nathan Blanchard, 01492 583443 Northern Ireland Colin Hatrick, 028 9064 1126 Republic of Ireland Cormac O’Sullivan, 00353 5677 62907 Institute ofHistoricBuildingConservation No 134May 2014 Timber conservation and repair RepairingHarmondsworthBarn The science of replacing historic timber RestoringMountStewart’s joinery 2 Briefing 5 Letters 6 Obituary: Jim Souness Aonghus MacKechnie 6 The writer’s voice 7 Out of context 8 Periodically Bob Kindred Timber conservation and repair 12 Our strange relationship with timber 13 Timber conservation and repair Robert Demaus 17 Ventilation and timber decay Brian Ridout 19 Repairing Harmondsworth Barn Toby Murphy and Iain McCaig 22 The science of replacing historic timber Mike Jarvis and Kate Hudson-McAulay 24 Restoring Mount Stewart’s joinery David McClimond 27 Birdcombe Court’s heart of oak Rebecca Milford 29 Discovering Tayfield bee-house Matthew Price 32 The movable house Nathalie Sorensen 35 Repairing wooden windows Darren McLean 39 Research into traditional timber joints Richard Harris, Wen-Shao Chang, Peter Walker and Jon Shanks 44 Timber repairs at Scarisbrick Hall Ian Weir 46 Assessment for listing Tony Calladine 49 From sites and monuments to the historic environment Seán O’Reilly 51 Notes from the chair 53 Director’s cut 56 Vox pop 57 Book reviews 61 Products and services 64 Advertisers index
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